PITTSBURGHCarnegie Mellon University students Peter Castelli and Daniel Fry will join Olympic gold medalist Jackie Joyner Kersee to show the effects of asthma on the lung and breathing with a small device created in a class project. The mechanical engineering students are part of a larger event designed to highlight the challenges faced by individuals with asthma. Representatives of the American Respiratory Alliance of Western Pennsylvania are sponsoring the event, which also includes a walk for asthma.